Re: Composing for window effects

[P3D Dr. George A. Themelis <fj834@xxxxxxxxxxxxxxxxxxxxx>]

>If there is reasonably consistency, [it]
>should be possible to make a real idiot's mounting guide by xeroxing
>the inside of a well mounted slide pair to see where the sprocket
>holes align.  You could then use this to align all future slides.

What do you mean by "inside of a well mounted slide pair"?  What is 
inside?  How would you use this pattern to align future slides?
Which mounts do you have in mind?

Sprocket hole location is consistent (within possible slack in the camera 
that causes frame overlapping).  The RBT mounts use sprocket holes for a
lignment (but they also allow you to slide the sprocket tab to change the 
stereo window).

Other systems, like the EMDE, are based on constant placement of the
chips in the mount.  If the chips are cut properly (preferrably using
a sprocket-based cutter, like the Realist cutter) then sprocket
hole location is also constant.  Heat-seal cardboard mounts are 
also based on constant placement (with more slack than the EMDE)

Albion and Realist aluminum masks that have channels to slide the chips
do not attempt to center your chips but the user can certainly center
them "by eye".  I don't see how trying to match a sprocket pattern
is any more accuarate than just centering the (properly cut) chips in
the mount.  

-- George Themelis


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